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Marking of a data medium material for information intended for reproduction

a data medium and information technology, applied in the field of machine-readable data medium materials, can solve the problems of often manipulated traditional identifications, intentionally and unintentionally

Active Publication Date: 2007-03-06
MEDIEN PATENT VERWALTUNG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]This approach makes it possible to link the markings which are provided to identify the medium (whether an original or a copy thereof) uniquely to the information intended for reproduction. The consequence of the linkage can be a medium-individualizing change of the information intended for reproduction, so that the reproduction of the information is also changed in a medium-individualizing way.

Problems solved by technology

In practice, it has been found that traditional identifications are frequently manipulated, intentionally and unintentionally.

Method used

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  • Marking of a data medium material for information intended for reproduction
  • Marking of a data medium material for information intended for reproduction
  • Marking of a data medium material for information intended for reproduction

Examples

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second embodiment

[0045]In FIG. 2, a section of a medium according to the invention, in the form of a magnetic tape 10, is shown. In the following, identical reference numbers will be used for the same or like components.

[0046]On the magnetic tape 10, analog or digital sound and / or picture information is recorded. This information intended for reproduction is contained on the magnetic tape 10 in a continuous sequence along the read-out direction which is identified by the arrow A.

[0047]As can be taken from FIG. 2, in the area of the information intended for reproduction a twice repeated sequence of markings 14 is formed. The markings 14 were obtained by a local change of the magnetic properties of the magnetic tape 10, and formed after the information intended for reproduction was recorded. For clarity, the individual markings 14 in FIG. 2 are shown as hatched ellipses. In reality, the markings 14 cannot be detected visually.

[0048]As already explained in connection with FIG. 1, the sequence of markin...

third embodiment

[0050]In FIG. 3a, a medium according to the invention, in the form of a celluloid film 10, which has the shape of a tape, provided with analog sound and picture information, and for reproduction using a film projector, is shown. The sound information is in the form of an optical sound track 20 in a continuous sequence. The picture information is also contained in a continuous sequence, e.g. as a cinema film, in a section 22 which is adjacent to the optical sound track 20.

[0051]In FIG. 3a, it can clearly be seen that in the area of the optical sound track 20, a sequence of parallel, bar-shaped markings 14 is formed. From the point of view of a read-out direction A, the sequence of markings 14 can be interpreted as a binary code, and more precisely as the binary number 1 1 1 0 1 0 1 (decimal 117). The markings 14 which are formed in the area of the optical sound track 20, for instance subsequently mechanically or using a laser, can be interpreted as a change to the optical properties ...

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Abstract

A method of identifying a mechanically readable medium is described. The medium, for instance a gramophone record, a magnetic tape or a celluloid film, contains information which is contained in a continuous sequence on the medium and is intended for optical or acoustic reproduction. A sequence of markings which individualizes the medium, and which can be read out together with the acoustic or optical information, is formed in the area of this acoustic or optical information.

Description

FIELD OF THE INVENTION[0001]The invention concerns machine-readable data medium materials. More precisely, the invention concerns the individualization of such data medium materials or copies thereof.BACKGROUND OF THE INVENTION[0002]Mechanisms for reproducing (playing back) information are in the focus of many technical areas. Usually, the information which is intended for reproduction is contained on a physical medium, which is read out using suitable devices. The read-out information is then reproduced optically, acoustically, optically and acoustically combined, or in another perceivable way.[0003]Various circumstances in connection with the handling of the medium make identifying it (or copies obtained therefrom) seem desirable. Thus in the production of media, there is often the requirement to provide the media with an individualizing identification such as a running serial number or batch designation. Such identification makes it easier subsequently to determine production sit...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G11B5/09G06K19/06G11B20/00G11B23/34
CPCG06K19/06018G11B23/34G11B20/00876G11B20/00086
Inventor LEHMANN, GERHARD
Owner MEDIEN PATENT VERWALTUNG
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